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Finding the Fourth Proportional to 32,807,720.40, 49,211,580.60 and 20,053,136.40

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Solution

The fourth proportional to 32,807,720.40, 49,211,580.60 and 20,053,136.40 is: 30,079,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,807,720.40 : 49,211,580.60 = 20,053,136.40 : x
  2. Step 2: Convert to fraction form
    32,807,720.40/49,211,580.60 = 20,053,136.40/x
  3. Step 3: Cross multiply
    32,807,720.40x = 49,211,580.60 × 20,053,136.40
  4. Step 4: Simplify right side
    32,807,720.40x = 986,846,538,231,393.75
  5. Step 5: Solve for x
    x = 986,846,538,231,393.75/32,807,720.40
  6. Step 6: Final answer
    x = 30,079,704.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.